River Clyde Model Guidance

Tidal River Clyde Flood Model

Glasgow City Council and SEPA have collaborated to produce an updated flood model for the tidal reach of the River Clyde, from Dalbeth to Greenock.

This updated model represents the best available understanding of current and future flood risk from the tidal Clyde for fluvial (river flooding) events and coastal flooding, including storm surge events and sea level rise, to the year 2100.

The tidal reach model is a 2D TUFLOW Model that includes updated bathymetry of the Clyde Estuary, updated LIDAR, revised hydrology and an update to the statistical analysis of the tidal boundary at Greenock and extreme still water levels.

Predicted flood levels from the tidal model for cross-sections along the tidal reach are available to download here to inform review of development sites - see table and plan in the "related documents" section.

Landowners or developers seeking to assess flood risk for land along the tidal reach should:

• Download the predicted flood levels table and plans, and assess against existing and proposed ground levels for their site/development.
   
• If, after this initial screening, the site is deemed to be within the functional flood plain, further, more detailed, analysis of flood risk for the site shall be undertaken using the Tidal River Clyde Flood Model.

The model is currently managed by our consultant's Fairhurst on behalf of Glasgow City Council. An administration fee of £750 + VAT is payable to Fairhurst to provide access to the model.  If you wish to contact Fairhurst click here.

The SEPA Flood Maps will be updated in due course to take account of the information from the model.

Non-Tidal River Clyde Flood Model

A flood model for the non-tidal reach of the River Clyde has being developed by South Lanarkshire Council.

Access to outputs from the non-tidal model can be arranged via South Lanarkshire Council.

For development on the River Clyde reach 500m upstream and 500m downstream of the tidal weir, both the tidal and non-tidal models need to be considered.

The SEPA Flood Maps will be updated in due course to take account of the information from the model.